Driver apologises to family after truck hits car, killing father and son

A 45-year-old truck driver has apologised to the family of two men who were killed when his truck hit their car at a railway crossing in WA's Wheatbelt.

Jeffrey Moyle was on a long haul drive for JDH Transport when he allegedly failed to stop his truck at a crossing on the Great Eastern Highway in Kellerberrin, 200 kilometres east of Perth on Monday.

Police say he slammed his prime mover truck into the back of a stationary car, propelling it 100 metres into nearby bushland.

Police media's Ros Weatherall outlines what police believe occurred.

"The prime mover allegedly failed to stop at the crossing and hit the rear end of the Holden Commodore forcing the vehicle off the road into nearby bushland and the car then burst into flames," she said.

"The two men were unable to exit their vehicle and died at the scene of the crash."

The 54-year-old driver of the car, Kevin Paki, and his 21-year-old son, Brian, who was in the passenger seat, were from Kalgoorlie.

Moyle, who is from Goomla in New South Wales, is charged with two counts of dangerous driving causing death.

Outside the Perth Magistrate's Court, he apologised to the family of the victims.

"I'm sorry for the people and their families," he said.

Moyle's bail was set at $20,000 with surety set at the same amount.

He is free to travel back to New South Wales but must front court again in Perth at the end of April.